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42
results.
Updated on
19/04/2025 [07:36:00]
Absstract of: US2025122859A1
A multi-stage buffer hydraulic cylinder for a wave-energy power generation apparatus and a multi-stage buffer hydraulic control method are provided. A built-in fixed rod is arranged inside a cylinder barrel of a hydraulic cylinder and nested in a piston rod, and a fixed-rod inner cavity and a piston-rod inner cavity are taken as high-pressure working cavities, such that the diameter of the piston rod can be increased while the effective work area is reduced. Front and rear end covers of the hydraulic cylinder each are provided with a buffer spring for buffering the strike caused by the excessive stroke of the piston rod under the extreme wave condition, and the hydraulic cylinder may be buffered under the condition of heavy waves by setting the stiffness of the spring, such that a main piston does not strike the front and rear end covers.
Absstract of: GB2634657A
A tidal energy system comprising: a seaward and a landward storage basin and an intermediate storage basin between the seaward and landward storage basins; and a bypass storage basin. A turbine is provided between the sea and the seaward storage basin, a turbine is provided between the seaward and the intermediate storage basins, a turbine is provided between the intermediate and the landward storage basins, a turbine is provided between the bypass storage basin and the sea; and a turbine is provided between the bypass and the landward storage basins. In a first operation phase, rising tidal water received at the seaward storage basin charges the tidal energy system by movement of water from the sea, to seaward to intermediate then to landward storage basins.
Absstract of: WO2025073334A1
A hydraulic piston pump assembly and a wave power system comprising such hydraulic piston pump assembly, wherein the assembly comprises a pump housing (11) having a pump housing axis and comprising an inner pump housing surface; a piston comprising a piston head (12a) with a peripheral head surface adapted to seal against the inner pump housing surface and a piston rod (12b) connected to the piston head (12a), wherein the piston rod (12b) comprises an outer piston rod surface and an actuator rod (13). The piston comprises an axial piston channel (15) extending at least partially through the piston rod (12b), wherein the actuator rod (13) has a first actuator end portion (13b) and a second actuator portion (13c), wherein the first actutor end portion (13b) fully or partly extending into the axial piston channel (15) and is slidable in the axial piston channel (15) and wherein the second actuator portion (13c) is adapted to be engaged with an effector capable of being actuated by water waves.
Absstract of: US2025116016A1
A buoyant hydrodynamic pump is disclosed that can float on a surface of a body of water over which waves tend to pass. Embodiments incorporate an open-bottomed tube with a constriction. The tube partially encloses a substantial volume of water with which the tube's constriction interacts, creating and/or amplifying fluid-flow oscillations therein in response to wave action. Wave-driven oscillations result in periodic upward ejections of portions of the water inside the tube that can be collected in a reservoir that is at least partially positioned above the mean water level of the body of water, or pressurized by compressed air or gas, or both. Water within such a reservoir may return to the body of water via a turbine, thereby generating electrical power (making the device a wave engine), or the device's pumping action can be used for other purposes such as water circulation, propulsion, dissolved minerals extraction, or cloud seeding. Methods are disclosed for manufacture of hydrogen at sea and for delivery of said hydrogen using a ship. Methods are disclosed for filling a hydrogen-loaded carrier ship at sea.
Absstract of: US2025119092A1
An apparatus for harvesting energy, such as solar, wind, wave, thermal, and the like, including a solar panel and a duct supporting the solar panel at an operational angle. The duct comprises a bottom shroud and side shrouds, therein forming a large aperture, a small aperture, and an oblique frustum shaped cavity. The oblique frustum shaped cavity is configured to direct a flow of fluid from the large aperture to the small aperture. A flow energy generator, such as a turbine, located at the small aperture is configured to collect flow energy. Temperature differences between the solar panel and the environment may be used to harvest thermal energy with a thermoelectric generator. Fluid flow under the solar panel may decrease the panel temperature and increase the efficiency. Generators may be operated in reverse to lower the solar panel temperature and increase efficiency.
Absstract of: WO2025074262A1
The invention concerns a method (1000,2000,3000) for controlling a plant (30) for the generation of electrical energy through the exploitation of the wave motion (54) in a body of water. The plant (30) comprises at least one generation module (34) adapted to convert kinetic energy associated with the wave motion (54) into electrical energy by means of a movable element (62) adapted to move due to the action of the wave motion (54) and a generator element (66) adapted to convert the movement of the movable element into electrical energy, at least one sensor (72) adapted to provide a measurement indicative of the wave motion (54) with respect to an element of the plant (30). The method comprises the steps of acquiring a plurality of measurements, calculating a damping coefficient associated with the conversion of motion into electrical energy of the generator element (66), and regulating the operation of the generator element (66) so as to impose the calculated damping coefficient.
Absstract of: WO2025074261A1
The invention concerns a method (1000,2000,3000) for controlling a plant (30) for the generation of electrical energy through the exploitation of the wave motion (54) in a body of water. The plant (30) comprises: - a bearing structure (32) comprising an emerged part and an immersed part, - at least one generation module (34) adapted to convert kinetic energy associated with the wave motion (54) into electrical energy by means of a movable element (62) adapted to move between two end-of-stroke positions due to the action of the wave motion (54) and a generator element (66) adapted to convert the movement of the movable element into electrical energy, the generation module (34) comprising a platform (36,60) coupled to the bearing structure (32), - a sensor (72) adapted to provide a measurement indicative of the wave motion (54) with respect to a first reference element (36,60) of the plant (30), and - actuation means adapted to move the platform (36,60) with respect to the bearing structure (32) along a longitudinal direction of the bearing structure (32), Advantageously, the method comprises the steps of: - acquiring (1000, 3001) a plurality of measurements of the sensor, - calculating (3004) an average position value of the level of the body of water (52) with respect to a second reference element (32) of the plant (30) based on the plurality of measurements, and - modifying (3010, 3013, 3014) the position of the platform (36,60) with respect to the second reference element (
Absstract of: WO2025074259A1
The invention concerns a plant (30) for the generation of electrical energy through the exploitation of the wave motion (54) at sea. The plant comprises: a supporting structure (32) comprising an emerged part and an immersed part and a plurality of generation modules (34). Each generation module comprises: a platform (36) constrained to the supporting structure and flanked to the emerged part; a guide channel (38) that develops vertically, fixed with respect to the platform; a rod (40) slidable along the channel; and a buoy (42) fixed to the lower end of the rod. The rod comprises a plurality of magnets (44) and the channel (38) comprises, respectively, a plurality of electrical windings (46). Each generation module comprises an auxiliary float (70) configured to detect variations in the level of the sea (52).
Absstract of: WO2025012387A1
A wave energy converter for converting kinetic energy of waves into electric energy is provided. The wave energy converter includes a base configured for being submerged on a seabed (23), a first floating weight (3), a first lever (6) connected to the floating weight (3) and the base, a first hydraulic cylinder (4) and a first piston (21) slidably received within the hydraulic cylinder (4), one of the first hydraulic cylinder (4) and the first piston (21) being connected to the base, the other one being connected to the first lever (6) or the first floating weight (3), a first output non-return valve (15) connected to an output of the first hydraulic cylinder (4), a first input non-return valve (14) connected to an input of the first hydraulic cylinder (4), a high-pressure hydraulic line (16) connected to the first output non-return valve (15), a low-pressure hydraulic line (17) connected to the first input non-return valve (14), a hydraulic tank (18) connected to the low-pressure hydraulic line (17), and a hydraulic motor (5) or turbine coupled to an electric generator, wherein an inlet (27) of the hydraulic motor (5) or the turbine is coupled to the high-pressure hydraulic line (16) and preferably an outlet (28) of the hydraulic motor (5) or the turbine is coupled to the tank (18).
Absstract of: AU2025201360A1
Abstract An energy-harvesting compute grid includes computing assemblies that cooperate with mobile energy harvesters configured to be deployed on a body of water. The plurality of energy harvesters are positioned on and move adjacent to an upper surface of a body of water, and the locations of the energy harvesters can be monitored and controlled. The widespread gathering by the harvesters of environmental data within that geospatial area permits the forecasting of environmental factors, the discovery of advantageous energy-harvesting opportunities, the observation and tracking of hazardous objects and conditions, the efficient distribution of data and/or tasks to and between the harvesters included in the compute grid, the efficient execution of logistical operations to support, upgrade, maintain, and repair the cluster, and the opportunity to execute data-gathering across an area much larger than that afforded by an individual harvester (e.g., radio astronomy, 3 D tracking of and recording of the communication patterns of marine mammals, etc.). The computational tasks can be shared and distributed among a compute grid implemented in part by a collection of individual floating self-propelled energy harvesters thereby providing many benefits related to cost and efficiency that are unavailable to relatively isolated energy harvesters, and likewise unavailable to terrestrial compute grids of the prior art.
Absstract of: US2025101943A1
A water-driven turbine has an elongated endless conveyor with down and up streaming straightaways connected by travel-reversing turns. Paddles mounted on the conveyor present high resistance to waterflow on the downstream straightaway and low resistance to waterflow or the atmosphere on the upstream straightaway, the differential allowing the flow of water to continuously drive the conveyor which is connected to a power take-off shaft facilitating connection to a variety of energy-harnessing systems. The turbine can be towed, self-driven or mooring line manipulated to a flow site and is operable in unidirectional flows such as rivers and reversing flows such as tides at depths from surface to bottom. The paddles can be mounted or changed on shore, at the flow site and anywhere in between. The turbine is efficient in low and high velocity water flow, not easily damaged by floating debris, cavitation free and fish, mammal and environmentally friendly.
Absstract of: US2025101941A1
A pressure-regulating buoyant hydrodynamic pump is disclosed that floats adjacent to a surface of a body of water over which waves tend to pass. In response to wave-induced movements of the device, water is drawn into a mouth at a lower end of an injection tube, and water is ejected from a mouth at an upper end of the injection tube. The ejected water is deposited into an interior of the hollow buoy thereby augmenting a water reservoir therein. And water flows from the water reservoir to and through a water turbine, thereby energizing a generator, power electronics, and an electrical load. A novel water-turbine effluent buffering tube, or chamber, smooths pressure variations felt across the water turbine.
Absstract of: AU2025201667A1
Abstract e for conversion of wave energy into electrical energy and the process for its deployment at the station location, wherein the device comprises a supporting construction (50) composed of buoyancy nts (52) and having a supporting tube (51) attached on the upper side. The device comprises a joint gear n the inner circumference connected with the outside surface of the supporting tube (51) in a sliding er and a sphere (32) to which is the floating body (20) pivotally connected. The device has two gears, the flexible gear (1) for connecting the floating body (20) to the second gear and the second gear for cting the flexible gear (1) to the generator. The flexible gear (1) consists of pulleys (6a, 6b, 6c) and a le element, e.g. a rope or a steel cable and the second gear can be arranged in several suitable forms, e.g. Jements as a set of a gear (4) and a rack (2) positioned inside the lower supporting tube (53) or a flexible nt, e.g. a chain (3) and a sprocket wheel (5) set in the buoyancy element (52). The supporting construction s by ropes (63) connected to the anchor weight (67) that is made in a form of a sphere segment either ly or through the rolling elements placed in the spherical dent of the anchor base (61). The invention rises the process for device deployment at the exploitation location which is particularly suitable due to transport with low draught.
Absstract of: GB2633861A
A vessel for generating electrical energy from water flow in tidal or river currents, having paddles 1 mounted to a plurality of linked 6 platforms (5, diagram B) that form a loop that run from the front to rear of one or more moored vessels or pontoons over five-sided light girder drums 4. Each paddle may be hinge 8 mounted to each platform, allowing the paddles to hang vertically when pushed by the current, flip over to a flat position 1 when the paddle leaves the water, before flipping to a hanging position when re-entering the water. A rigid support/strut 2 may be attached to each paddle to support the paddle when it is being pushed by the current, the support engages with a fixture (3, diagram B) in the platform. The drums have flat surfaces that accommodate the platforms and have circular rims to keep the platforms in place. Each paddle may have two buoyancy tubes (6, diagram B) to prevent the paddle from sinking when immersed. One of the drums axles drives electrical generating equipment. The paddle assembly may be mounted to the side of a pontoon/vessel, and/or mounted between two or more pontoons/vessels.
Absstract of: WO2025054673A1
Embodiment of a wave energy conversion (WEC) apparatus are disclosed. In one embodiment, a WEC apparatus (10) comprises an outer member (14) and an inner member (16). At least one of the outer member (14) and inner member (16) is configured to move in response to an incident wave regime. In use, relative motion between the outer member (14) and the inner member (16) is used to generate electrical power.
Absstract of: WO2023220343A2
Provided is a floating structure for floating in the open water, the floating structure (2, 2') configured to serve as a boat docking, comprising a surrounding structure (10) and an inner space (20), the surrounding structure (10) surrounding the inner space (20) for at least one boat to dock at a boat docking place (18) of the floating structure (2, 2'), the surrounding structure (10) comprising an opening (12) for the boat to enter the inner space (20) from the open water or leave it vice versa, a connecting point (24) for connecting an anchoring line (6) to anchor the floating structure (2, 2') to float at a set area within the open sea, the connection point (24) being at a first side of the surrounding structure (10) and the opening (12) substantially being arranged at an opposite side of the surrounding structure (10), so the opening (12) is arranged at a downstream end of the floating structure (2, 2') and a wave energy harvesting system having a plurality of floaters the floaters being able to move vertically independent from each other for each floater to follow the movement of sea waves when placed on the surface of the sea.
Absstract of: WO2024009058A1
The present disclosure relates to a tidal turbine for converting kinetic energy of water into electrical energy. An aspect of the disclosure provides a tidal turbine assembly (100) comprising: a first turbine (110), comprising a first plurality of foils (111-113), that is configured, in use, to rotate around an upright axis that is upright relative to the sea bed; and a second turbine (120), comprising a second plurality of foils (211-213), that is configured, in use, to rotate around an upright axis that is upright relative to the sea bed; wherein the first turbine (110) and the second turbine (120) are coupled by a support beam (130) that is configured to be, in use, above the sea level; and wherein the support beam (130) is coupled to a support column (140) to support the support beam, in use, above the sea level.
Absstract of: WO2025054228A1
The disclosure features subaquatic power generation systems and methods of their use in bodies of water. Some implementations feature a subaquatic power generation system that includes (a) a housing having an inlet, an outlet, and, between the inlet and outlet, a channel through which water can pass in a fluid flow direction, and a power generating area defining a watertight and airtight chamber configured to provide an air pocket within the housing when the housing is fully submersed in water; and (b) a waterwheel disposed within the power generating area such that a longitudinal axis of the waterwheel is oriented generally horizontally and generally perpendicular to the fluid flow direction, an upper portion of the waterwheel is disposed within the chamber, and a lower portion of the waterwheel is disposed within the channel and acted upon by fluid flow through the channel.
Absstract of: US2025084821A1
A power generation complementary system for tidal range power generation and construction, which provides a bay construction tidal range power generation facility to carry out reciprocal and complementary power generation in response to the changing high and low tide levels at tidal time curve turning points, to produce stable power output. The system is constructed with a reserve weir pool facing the direction of incoming ocean tidal energy. The reserve weir pool is divided into a left pool area and a right pool area, which are respectively equipped with an energy conversion equipment associated therewith. According to the state of a tidal time curve, mutually dependent control devices relay an instruction to sequentially handover operation from one conversion equipment to the other conversion equipment, thereby enabling the system to receive quantities of energy and carry out complementary power generation at the appropriate times.
Absstract of: JP2025033260A
【課題】表層潮流エネルギーを効率よく回生することのできる浮体式水車装置、及び、浮体式の潮流発電設備を提供する。【解決手段】カタマラン構造の浮体１１を構成する並置された２つの胴体の間を水路１２として開放型下掛け式水車１３を設置し、水車後流の水路側壁を流れ方向に拡幅、及び／又は、は水路床面１２ｃを傾斜させた下流側に拡流部１２Ｂを有する水路構造とすることにより、通過流体の比エネルギーを増大させる。このカタマラン構造の浮体１１は、１本の係留索３０Ｃを介して海底に固定された係留アンカー３２に係留することにより、潮流に対し水路１２の拡流部１２Ｂ側が自動的に下流側になる。さらに、上記開放型下掛け式水車１３は、フロート式の水車搭載機構２０により、上記カタマラン構造の浮体１１に設置することにより、迎え流速によって大きく変動する水路表面形状に追従させる。【選択図】図２
Absstract of: DK202370390A1
Disclosed is a wave power plant comprising a frame construction extending in a longitudinal direction and having a rotor shaft extending in the longitudinal direction of the frame construction, a plurality of rocking rotors, the plurality of rocking rotors being arranged rotatably with respect to the frame construction around the rotor shaft each rocking rotor comprising a buoyant body, the buoyant body having a shell, a bearing arranged at the rotor shaft, an interface construction configured to interconnect the buoyant body with the bearing, such that the rocking rotor is rotatably connected to the rotor shaft, wherein, the shell of the buoyant body has a triangular shape having a first side and a second side being first and second convex shaped sides and a third side being a third concave shaped side, the third concave shaped side facing the rotor shaft.
Absstract of: US2025084818A1
The disclosure features subaquatic power generation systems and methods of their use in bodies of water. Some implementations feature a subaquatic power generation system that includes (a) a housing having an inlet, an outlet, and, between the inlet and outlet, a channel through which water can pass in a fluid flow direction, and a power generating area defining a watertight and airtight chamber configured to provide an air pocket within the housing when the housing is fully submersed in water; and (b) a waterwheel disposed within the power generating area such that a longitudinal axis of the waterwheel is oriented generally horizontally and generally perpendicular to the fluid flow direction, an upper portion of the waterwheel is disposed within the chamber, and a lower portion of the waterwheel is disposed within the channel and acted upon by fluid flow through the channel.
Absstract of: WO2023214322A1
The invention relates to a plant 20 for the exploitation of renewable energy sources in open sea. The plant comprises: a vertical main pillar 22 comprising a part 24 over sea level and an immersed part 26; at least one electric generator 28 that produces electric power exploiting renewable energy sources; a battery storage 30 for storing electric power; and an electrical connector 34 that makes available the electric power to an external user. Furthermore, in the plant of the invention the battery storage is inside the main pillar, develops in the immersed part, and comprises a movable structure configured for allowing the movement of batteries along the main pillar.
Absstract of: US2025074554A1
Methods and systems are provided for nautical stationkeeping of free-floating objects. In one example, a method includes adjusting translational motion of a body freely floating in water by rotating the body. The translational motion may be adjusted, for instance, to maintain the body within a geographic area. In certain examples, the adjustment of the translational motion may be realized via a Magnus effect induced by rotating the body. The body may be configured as, for example, a free-floating object such as a wave engine.
Nº publicación: MA61744A1 28/02/2025
Applicant:
AZOUGUAGH ADEL [MA]
AZOUGUAGH ADEL
Absstract of: MA61744A1
This device involves a bucket (1) that carries water from the basin (21) at the bottom, stores it in the tank (11) at the top, and returns it to the basin through a pipe (14) to operate the turbine electric generator (M) located below.
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